A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a firing technique of blue-and-white underglaze red, which comprises the following steps: 1) preparation of blank and glaze; 2) preparation of billet: making the blank into the billet, trimming, and airing for later use; 3) blue-and-white underglazing: drawing patterns or writing characters on the billet surface with a blue material and a copper red material, carrying out glaze application, and airing to obtain a blue-and-white billet; 4) firing: putting the blue-and-white billet into a kiln, controlling the kiln in an oxidizing atmosphere, heating to 300 DEG C at 100-120 DEG C/hour, and continuing heating to 950 DEG C at 150-200 DEG C/hour; and while controlling the kiln in a reducing atmosphere, heating to 1260-1360 DEG C at 40-60 DEG C/hour, keeping the temperature for 1-2 hours, stopping heating, cooling, and discharging out of the kiln to obtain the finished product. The blue material of the blue-and-white underglaze red porcelain has the advantages of bright color development and stable and uniform coloration, the red material has the advantages of bright coloration, no flying red and no blackening. The blue and red colors of the blue-and-white underglaze red porcelain contrast with each other and benefit each other.
The invention discloses a firing technique of blue-and-white underglaze red, which comprises the following steps: 1) preparation of blank and glaze; 2) preparation of billet: making the blank into the billet, trimming, and airing for later use; 3) blue-and-white underglazing: drawing patterns or writing characters on the billet surface with a blue material and a copper red material, carrying out glaze application, and airing to obtain a blue-and-white billet; 4) firing: putting the blue-and-white billet into a kiln, controlling the kiln in an oxidizing atmosphere, heating to 300 DEG C at 100-120 DEG C/hour, and continuing heating to 950 DEG C at 150-200 DEG C/hour; and while controlling the kiln in a reducing atmosphere, heating to 1260-1360 DEG C at 40-60 DEG C/hour, keeping the temperature for 1-2 hours, stopping heating, cooling, and discharging out of the kiln to obtain the finished product. The blue material of the blue-and-white underglaze red porcelain has the advantages of bright color development and stable and uniform coloration, the red material has the advantages of bright coloration, no flying red and no blackening. The blue and red colors of the blue-and-white underglaze red porcelain contrast with each other and benefit each other.
Method for high-temperature firing of underglaze color crackle ceramic
| European Patent Office | 2015